eFunda: General Information on Element Hydrogen
engineering fundamentals Element Information: Hydrogen
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Hydrogen
 
1
H
1.00794
 Atomic Number 1
Atomic Weight 1.00794
Electron Config. 1
Electron configuration order: 1s-2s-2p-3s-3p-3d-4s-4p-4d-4f-5s-5p-5d-5f-6s-6p-6d-7s

Mechanical Properties Conditions
Phase Temp. (K) Pressure (Pa)
Density (H2) 0.0899 kg/m3 Gas  293.15  101325 
Density (H2) 70.8 kg/m3 Liquid  20.28  101325 

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature (H2) 13.81 K   101325 
Boiling Temperature (H2) 20.28 K   101325 
Critical Temperature (H2) 32.97 K    
Fusion Enthalpy (H2) 62.8 J/g 0  101325 
Vaporization Enthalpy (H2) 445.46 J/g 0  101325 
Heat Capacity (H2) 14304 J/kg-K 298.15 100000 

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